24
PORT MANAGER SWITCHES
4.1.2 D
EFAULT
F
LOW CONTROL
(P
OSITION
4)
The default flow-control format should be set to match the flow control used
by the device attached to Port 1 of the PM Switch. You can use Position 4 of
the SETUP switch to select either DTR (hardware) or X-ON/ X-OFF
(software) flow control: Set Position 4
down
for DTR or
up
for X-ON/X-OFF.
(DTR is the factory-default setting.)
After the PM Switch has been installed, the port-configuration command /P
can also be used to select both DTR and XON/XOFF flow control, or no flow
control. The /P command can select a different flow-control format for each
port.
4.1.3 D
EFAULT
R
ESPONSE
M
ESSAGE
F
ORMAT
(P
OSITION
5)
The PM Switch can respond with either verbose (English text) or terse
(numeric /abbreviated) messages. Both terse and verbose response messages
are summarized in
Section 8.2
. You can set Position 5 of the SETUP switch to
down
for verbose messages (the factory-default setting) or
up
for terse
messages.
After the unit has been installed, the /P command can also set the
response-message format to “none” (Quiet Mode). When the Quiet Mode is
selected, the PM Switch will not send messages in response to commands. The
/P command can select a different Response-Message Format for each port.
4.1.4 D
EFAULT
C
OMMAND
E
CHO
(P
OSITION
7)
You can use Position 7 of the SETUP switch to enable or disable the
Command Echo. When you enable Command Echo, characters sent to the
PM Switch will be echoed back to the control device. Set position 7
down
to
disable the echo (the factory-default setting) or
up
to enable it.
After the PM Switch is installed, the /P command can enable or disable
Command Echo individually for each port.
Summary of Contents for SW545A
Page 63: ...64 PORT MANAGER SWITCHES NOTES...